Hariakhan Baba was a teacher who taught throughout northern India near the Himalayas between 1861 and 1924.
Babaji, as he is referred to, is discussed in the book Hariakhan Baba: Known and Unknown by Baba Hari Dass. Several additional accounts were also written about his guru by an Indian holy man named Mahendra Baba a long term disciple, who identified him as being the same person as Mahavatar Babaji, the immortal master who initiated Lahiri Mahasaya into Kriya Yoga in 1861.
Roy Eugene Davis, a direct personal disciple of Paramahansa Yogananda and former minister of the Self-Realization Fellowship Phoenix Temple, professed a similar belief in his book Life Surrendered in God: The Philosophy and Practices of Kriya Yoga by recounting Baba Haridass' story of Hariakhan Baba as recorded in Hariakhan Baba: Known and Unknown and including a full-page photograph of Hariakhan Baba, lifted from the same book, with the label "Mahavatar Babaji."
Mahavatar Babaji - Hariakhan Baba was identified as the same as Mahavatar Babaji by Mahendra Baba
Haidakhan Babaji - a teacher who appeared in northern India and taught publicly from 1970 to 1984